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Gone, but in no way forgotten (guys as extraordinary as our former media and communications linchpin are impossible to forget), Randy Clemens is returning with a special edition Stone Blog post to close-out his two part series on Stone Brewing Co.’s yeast. Enjoy!

When we last left off, you’ll recall that we’d taken a trip down to see our friends at White Labs to learn a bit more about the unsung hero of our beer: the Stone yeast strain. We got to see where the yeast was stored and how it was cared for, but what happens once it gets into our hands?

Stone’s yeast strain under 40x magnification at a 2x dilution from a batch of fermenting IPA.

Y’know… it seems like hops get a heck of a lot of attention for their delightfully flavorful contributions to our awesome beers. Rightly deserved, but there’s a little unsung hero that we feel is finally due some credit: our yeast strain.

BOW BEFORE SACCHAROMYCES CEREVISIAE! Wha.. No! We were kidding! Get up!

To tell the truth, my favorite part of putting together our book—The Craft of Stone Brewing Co.: Liquid Lore, Epic Recipes, and Unabashed Arrogance—with Steve and Greg was getting the low-down on where the Stone yeast strain came from. You see, when a mommy and daddy yeast cell love each other very much… no, not really. (They don’t even get to have that much fun; yeast cells reproduce asexually through a process called budding… but I digress.) Our yeast’s ultimate origins were told to me by Steve, and I laughed my ass off when he told me the story. From the aforementioned book, I quoteth: